Grain size dependence of low field microwave absorption in Y1Ba2Cu3O7 powders |
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| Authors: | Gould A Tyagi SD Bhagat SM Manheimer MA |
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| Affiliation: | Dept. of Phys. & Astron., Maryland Univ., College Park, MD; |
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| Abstract: | The authors report investigations on the influence of low (≲65 Oe) magnetic fields on microwave absorption in several Y1 Ba2Cu3O7 powders at 2, 10, 22, and 35 GHz at temperatures varying between 1.3 K and 77 K. Even powders which show negligible zero-field absorption have a significant induced absorption at low fields. At low T there is a large frequency-dependent magnetic hysteresis in the field-induced absorption |
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